scholarly journals Developing a Pollution Measuring System to Manage Demolition Projects Complying with Legal Regulations

2014 ◽  
Author(s):  
Markus Reinhardt ◽  
◽  
Anna Kühlen ◽  
Shervin Haghsheno ◽  
◽  
...  
Keyword(s):  
Measuring System ◽  
Legal Regulations

Allergic Reactions to Food Proteins

2011 ◽  
Vol 81 (23) ◽  
pp. 173-180 ◽  
Author(s):  
Barbara K. Ballmer-Weber
Keyword(s):  
Food Allergies ◽  
Allergic Reactions ◽  
Allergenic Food ◽  
Processed Foods ◽  
Legal Regulations ◽  
Pollen Allergens ◽  
Curative Therapy ◽  
Novel Foods ◽  
Allergenic Proteins ◽  
Adolescents And Adults

Four to eight percent of the population are estimated to be food-allergic. Most food allergies in adolescents and adults are acquired on the basis of cross-reaction to pollen allergens. Theses allergens are ubiquitous in the plant kingdom. Therefore pollen-allergic patients might acquire a multitude of different plant food allergies, and even react to novel foods to which they have never previously been exposed. A curative therapy for food allergy does not yet exist. Food-allergic patients have to rely on strict avoidance diets, The widespread use of industrially processed foods poses a general problem for food-allergic patients. Although the most frequent allergens must be declared openly in the list of ingredients, involuntary contamination with allergy-provoking compounds can occur. The precautionary labelling “may contain” is sometimes applied even if the chance of contamination is very low; on the other hand, foods not declared to contain possible traces of allergenic components may actually contain relevant amounts of allergenic proteins. Switzerland is the only country in Europe with legal regulations on contamination by allergenic food; however, the allowance of 1 g/kg is too high to protect a relevant proportion of food-allergic individuals.

High-voltage monitoring by the fiber-optic recirculating measuring system

2020 ◽  
pp. 38-44
Author(s):  
A. V. Polyakov ◽  
M. A. Ksenofontov
Keyword(s):  
Optical Fibers ◽  
High Voltage ◽  
Optical Sensors ◽  
Electromagnetic Interference ◽  
Fiber Optic ◽  
Electric Power Industry ◽  
Measuring System ◽  
Voltage Range ◽  
External Electromagnetic Fields ◽  
Optic Communication

Optical technologies for measuring electrical quantities attract great attention due to their unique properties and significant advantages over other technologies used in high-voltage electric power industry: the use of optical fibers ensures high stability of measuring equipment to electromagnetic interference and galvanic isolation of high-voltage sensors; external electromagnetic fields do not influence the data transmitted from optical sensors via fiber-optic communication lines; problems associated with ground loops are eliminated, there are no side electromagnetic radiation and crosstalk between the channels. The structure and operation principle of a quasi-distributed fiber-optic high-voltage monitoring system is presented. The sensitive element is a combination of a piezo-ceramic tube with an optical fiber wound around it. The device uses reverse transverse piezoelectric effect. The measurement principle is based on recording the change in the recirculation frequency under the applied voltage influence. When the measuring sections are arranged in ascending order of the measured effective voltages relative to the receiving-transmitting unit, a relative resolution of 0,3–0,45 % is achieved for the PZT-5H and 0,8–1,2 % for the PZT-4 in the voltage range 20–150 kV.

Information and measuring system based on the device «Polyreotest PRT-2» for wheat hardness control

2020 ◽  
Vol 29 (8) ◽  
pp. 57-61
Author(s):  
V.Y. Chernykh ◽  
◽  
E.V. Karpushina ◽  
N. Yu. Bykova ◽  
A.S. Maksimov ◽  
...  
Keyword(s):  
Measuring System

A new method of fluxgate signal extraction

2017 ◽  
Vol 2017 (45) ◽  
pp. 83-89
Author(s):  
A.A. Marusenkov ◽  
Keyword(s):  
High Frequency ◽  
Second Harmonic ◽  
Excitation Frequency ◽  
Low Noise ◽  
Measuring System ◽  
Signal Extraction ◽  
Fluxgate Magnetometer ◽  
New Approach ◽  
Average Value ◽  
The Time Domain

Using dedicated high-frequency measuring system the distribution of the Barkhausen jumps intensity along a reversal magnetization cycle was investigated for low noise fluxgate sensors of various core shapes. It is shown that Barkhausen (reversal magnetization) noise intensity is strongly inhomogeneous during an excitation cycle. In the traditional second harmonic fluxgate magnetometers the signals are extracted in the frequency domain, as a result, some average value of reversal magnetization noises is contributed to the output signals. In order to fit better the noise shape and minimize its transfer to the magnetometer output the new approach for demodulating signals of these sensors is proposed. The new demodulating method is based on information extraction in the time domain taking into account the statistical properties of cyclic reversal magnetization noises. This approach yields considerable reduction of the fluxgate magnetometer noise in comparison with demodulation of the signal filtered at the second harmonic of the excitation frequency.

MEASURING SYSTEM FOR MONITORING GRAIN TEMPERATURE DURING STORAGE

2020 ◽  
Author(s):  
S.А. Zelensky ◽  
◽  
M.S Stepanov ◽  
Keyword(s):  
Nondestructive Testing ◽  
Thermophysical Properties ◽  
Science And Technology ◽  
Measuring System ◽  
Grain Temperature

In science and technology, today various sensors of electrical and non-electrical quantities are used. The article provides a brief overview of the primary converters. One of the devices for nondestructive testing of thermophysical properties for determining the characteristics of agricultural objects in production is presented.

Organisational aspects of spatial information infrastructure in Poland

2013 ◽  
Vol 62 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Elzbieta Bielecka ◽  
Agnieszka Zwirowicz-Rutkowska
Keyword(s):  
Spatial Information ◽  
Information Infrastructure ◽  
Class Diagram ◽  
Use Case ◽  
Legal Regulations ◽  
Organisational Structure ◽  
Technical Aspects ◽  
Polish Law

Abstract One of the more important elements of spatial information infrastructure is the organisational structure defining the obligations and dependencies between stakeholders that are responsible for the infrastructure. Many SDI practitioners and theoreticians emphasise that its influence on the success or failure of activities undertaken is significantly greater than that of technical aspects. Being aware of the role of the organisational structure in the creating, operating and maintenance of spatial information infrastructure (SII), Polish legislators placed appropriate regulations in the Spatial Information Infrastructure Act, being the transposition of the INSPIRE Directive into Polish Law. The principal spatial information infrastructure stakeholders are discussed in the article and also the scope of cooperation between them. The tasks and relationships between stakeholders are illustrated in UML, in both the use case and the class diagram. Mentioned also are the main problems and obstructions resulting from imprecise legal regulations.

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